ARW-7 Abs Control Unit Check

Connect ABS test connector Green/Black and Black terminals with jumper wire. Start engine. Verify that ABS warning light remains on. Drive vehicle at 9 MPH (15 km/h). Check that ABS warning light flashes .25 second on and off. If light flashes .25 second on and off, check brake lines to rear wheels. If brake lines are okay, replace hydraulic unit. If light does not flash .25 second on and off, replace ABS control unit.